It is a form of essay that attempts to analyze a problem and propose one or more solutions to it. From the options given the one that is narrow enough to serve as a subject is option C because the others are way too broad to write down an essay.
The rest of the options are an attempt to analyze the entire policies of education.
According to most progressives, it is the business or employer that should be held responsible for employee injuries that occur on the job. Although of course this isn't always true.